NEW DELHI: Bharti Airtel added the maximum number ​​of ​subscribers among GSM telcos in June at ​1.40 million, followed by Vodafone India and Idea Cellular, telecom group Cellular Operators Association of India (COAI) in a statement said Monday.

India's total mobile subscription base reached to 776.97 million in June, according to COAI.

​The ​Maharashtra telecom circle added ​the ​highest number of subscribers ​- 0.36 million​ - in June while UP ​(​East​)​ remains the top circle in terms of subscriber base with a total of 71.24 million users.